Support

The ST mic is a sound tube- which is pretty much the exact same thing as a voice tube - but Plantronics had probably already copywritten voice tube...

Analog phone lines. Analog signals. Digital security. Digital PBX. Analog-to-digital adapters. What does it all mean? In the telecom world, underst...

Yes there is!! Here is how you do it: MB660 Reset: Switch the Headset OFF. To do this, turn the earphones outward (so the headset is flat and can g...

Sennheiser EHS Catalog # & Setup. Sennheiser Electronic Hookswitch for Aastra Phones (DISCONTINUED) Catalog # 2173 SEN/EHS/AASTRA Set up - TBD ...

So glad you asked! This big boy is DISCONTINUED but sure does have some nifty instructions. Here we go! PAIRING: To a Bluetooth Device 1) To put yo...

Solution : The Sennheiser CUIPC-1 RJ9 to Computer Analog Connector Cord - Catalog # 1798 Connects the UI 760 amplifier to your computer with dual R...

“It works great. It’s what our CEO does.” - Mike It will pair via Bluetooth since iPads do not have a USB Port.. To pair via Bluetooth: 1. Turn on ...

Awesome Features of our Super Cool Kalm Headset!! . Does the Kalm have call control? YES! The Kalm headset also has a really cool technology called...

NO, it will not. This extender bar is not compatible. The Leitner Lifter comes with a built-in extender bar, similar to the ORL12. It's a rubber sl...

AT&T MARATHON Lights (MARATHON Discontinued). On The Base: Red light lit up next to Lifter Mode or No Lifter Mode. When the headset is ON, this...

What can the serial number tell us about the product? It really depends on the brand. We don't know it all, but here is what we have so far. Leitne...

[OFFICERUNNER DISCONTINUED] Not really... BUT... Did you know that you could put up to 3 Sennheiser headsets in on 1 base in Training mode WITHOUT ...